Good to hear that you got it sorted. 🤣
Re: Your additional comment.
It is now possible to lock your notes w/ your passcode. This does allow one to regain access thru any of Apple’s normal account recovery mechanisms.
For users who desire MORE security for particular notes — with encryption that even Apple can’t help with — the “Custom” password is an option.
However, as the encrypting key is known ONLY to to user, the burden of recovery is also completely on the user.
(It would be somewhat illogical if the same Apple security mechanisms which the user had deemed to be “insufficient” …
… were than able to “bypass” the “custom” user-applied encryption scheme)
How to lock or unlock notes on your iPhone or iPad - Apple Support